#include <cstdint>
#include <iostream>
#include <istream>
#include <vector>
using ll = int64_t;

ll n,m,v,e;
std::vector<std::vector<ll>> mp;
std::vector<ll> c,d;

int main(){
    std::iostream::sync_with_stdio(false);
    std::cin.tie(nullptr);

    std::cin>>n>>m>>v>>e;
    mp.resize(v+1,std::vector<ll>(v+1));
    c.resize(n+1);
    d.resize(n+1);
    for(ll i=1;i<=n;i++){
        std::cin>>c[i];
    }
    for(ll i=1;i<=n;i++){
        std::cin>>d[i];
    }
    
}